West Mifflin, PA
Allegheny County · Pennsylvania · United States
Home to 2 people across 0.068 square miles.
At a glance
15123 by the numbers
Every figure below comes from the 2019–2023 American Community Survey 5-Year Estimates, the Census Gazetteer, or is computed from those. Margins of error are shown where they matter.
Location
Where 15123 is
| Coordinates | 40.348186, -79.934828 |
|---|---|
| Time zone | America/New_York |
| County | Allegheny County |
| State | Pennsylvania (PA) |
| Land area | 0.068 mi² |
| Coordinate source | Census ZCTA internal point |
Local time
America/New_York
Current weather
Live from the National Weather Service
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Distance to major cities
Straight-line, computed from coordinates
| Philadelphia, PA | 253.3 mi |
|---|---|
| New York, NY | 312.3 mi |
| Chicago, IL | 414.1 mi |
| Boston, MA | 480.6 mi |
People
Who lives in 15123
2 residents in 0 households, averaging None people per household. The largest age group is 18-24 at 50.0% of residents.
Age distribution
Share of residents by age band
Households
Composition and size
| Total households | 0 |
|---|---|
| Average household size | None |
| Family households | None% |
| Living alone | None% |
| Median age | None years |
Race & ethnicity
Census race categories. Hispanic or Latino origin is asked separately and overlaps these groups.
Income & work
What people earn in 15123
Income data is suppressed for this ZIP code.
Compared to the US
This ZIP against the national median
| Median household income | — ±— |
|---|---|
| Per capita income | — |
| Poverty rate | 0.0% |
| Unemployment rate | 0.0% |
| Labor force participation | 50.0% |
Household income distribution
Share of households in each bracket
Educational attainment among residents 25 and older: 100.0% hold a bachelor's degree or higher, 100.0% finished high school.
Housing
Homes and rent in 15123
Housing cost data is suppressed for this ZIP code.
Costs
Typical values
| Median home value | — |
|---|---|
| Median gross rent | —/mo |
| Median year built | — |
| Housing units | 0 |
| Vacancy rate | None% |
Own vs. rent
Of 0 occupied units
| Owner households | 0 |
|---|---|
| Renter households | 0 |
Building types
Units by structure size
Getting to work
How 15123 commutes
100.0% of workers worked from home. 100.0% work from home.
Mode of transport
Workers 16 and older
Travel time
Mean commute — minutes
Overview
Understanding ZIP code 15123
ZIP code 15123 is assigned to West Mifflin, PA, and falls within Allegheny County. Like every US postal code, it began as a mail-routing device rather than a geographic boundary — the US Postal Service groups delivery routes under a single code so carriers and sorting equipment can process mail efficiently. Today it also serves as a practical shorthand for the area itself: roughly 2 people live inside it.
At 29 residents per square mile spread over 0.068 square miles, 15123 reads as a rural area. It is a sparsely populated postal code, and density shapes almost everything else on this page — how people get to work, whether they own or rent, and what housing costs.
Living here
What life in West Mifflin looks like
The population skews not published, with a median age of None against 42 nationally.
Where to stay
Where to stay in West Mifflin, PA
15123 covers a rural area, and accommodation within the postal code itself is likely to be sparse — perhaps a country inn, a lodge or a vacation rental rather than a conventional hotel. Widening the search radius is usually the practical approach, and it also opens up more availability at short notice.
For reference, Philadelphia, PA is about 253.3 miles away in a straight line, which is worth factoring in if you are comparing a stay here against one closer to the city centre.
Availability and pricing change constantly, so the live search below will give you a more accurate picture than any figure we could publish here. It opens results for this area on Booking.com.
Opens Booking.com in a new tab. We are not affiliated with Booking.com and receive nothing from this link.
Practical uses
What ZIP code 15123 is used for
Beyond addressing mail, 15123 does a lot of quiet administrative work. Retailers use it to calculate shipping and sales tax at checkout. Insurers use it to set premiums, since risk profiles vary geographically. Employers and marketers use it to define service areas. Government agencies use it to route benefits and organise reporting. If you have ever been asked for a postal code by a form that clearly does not intend to send you anything, this is why.
For anyone weighing a move, 15123 offers a compact profile of West Mifflin: 2 residents, 100.0% of adults holding a bachelor's degree or higher, and an unemployment rate of 0.0%. A handful of figures like these answer more relocation questions than most neighbourhood guides do.
One caution worth repeating: a postal code is not a neighbourhood. 15123 may cover parts of several distinct areas, and a single neighbourhood in West Mifflin may be split across more than one code. Boundaries also shift as USPS adjusts delivery routes. Treat the figures here as describing a delivery area, which is what they actually measure.
Nearby
ZIP codes near 15123
The eight closest postal codes by centroid distance, each with its own full profile. You can also browse every Pennsylvania ZIP code or use the ZIP Express Lookup to search by city, county or time zone.
Other ZIP codes in West Mifflin
West Mifflin is served by 2 postal codes.
More in Allegheny County
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Questions
Common questions about 15123
What city is ZIP code 15123 in?
What is the population of 15123?
Is 15123 a good place to live?
What time zone is 15123 in?
How big is ZIP code 15123?
Is 15123 urban, suburban or rural?
How many people work in 15123?
Where should I stay when visiting 15123?
Does 15123 cover more than one city or county?
Can ZIP code 15123 change?
Methodology
Where this data comes from
- Postal geography — GeoNames open postal code database (CC BY 4.0), cross-checked against the US Census Gazetteer.
- Demographics, income, housing, commute — US Census Bureau, American Community Survey 2019–2023 5-Year Estimates, ZIP Code Tabulation Area 15123. Tables B01001, B01002, B01003, B02001, B03003, B08301, B08303, B11001, B15003, B17001, B19001, B19013, B19301, B23025, B25002, B25003, B25024, B25035, B25064, B25077, B28002.
- Land and water area — US Census Bureau 2023 Gazetteer Files.
- Weather — NOAA National Weather Service, fetched live in your browser.
- Map — OpenStreetMap contributors (ODbL).